Collapsible form reinforced structure for floors or multi-story buildings

ABSTRACT

The present invention relates to a structural element and more particularly to prefabricated T-beams which are designed to be manufactured in different dimensions and which are capable of supporting high loads. It is an object of the invention to provide such structural elements of great strength and which can be manufactured in dimensions necessitated by individual requirements with relatively overall low labor and material costs. According to the invention there is provided a prefabricated metal form characterized by the fact that it is disposed to form an arch shape between parallel support T-beams underneath the concrete flooring during the curing phase of the concrete construction, which is designed to take up the tension and stress of the above flooring, said form elements disposed in parallel in relation to one another.

BACKGROUND OF THE INVENTION—FIELD OF THE INVENTION

This invention relates to the support of reinforced structures adapted to be used as reinforced floors, more particularly a lightweight collapsible metal form support which does not require scaffolding, molding, carpentry or heavy equipment.

BACKGROUND OF THE INVENTION

Pre-cast concrete materials are common forms of construction for buildings possessing concrete flooring and support. Commonly, these materials require the set-up of expensive and labor intensive materials. Currently, it is the practice that in construction of concrete floors and supports, in multi-story buildings, wooden scaffoldings are first built to support the concrete molds which the concrete is poured into over metal bars for reinforcement. This “preconstruction” phase itself requires carpentry work to perform and complete. This practice is very labor intensive and requires the use of heavy machinery.

The proposed invention requires no scaffolding, no molding, no carpentry, and no heavy equipment.

By utilizing a collapsible metal form, the workers can bypass all of the labor and material intensive steps currently in practice. The metal form permits only two workers, placed on opposing ends of the form, to quickly set the form in place. For multi-level buildings, the form may be held in place with the positioning of three floor-jacks, one each on opposing ends of the form and one in the middle, rather that constructing a complicated concrete mold and scaffolding system.

BACKGROUND OF THE INVENTION—OBJECTS AND ADVANTAGES

Accordingly, besides the objects and advantages of the collapsible metal form reinforced structure described herein, several objects and advantages of the present invention are:

-   -   (a) to provide a new collapsible metal form reinforced structure         for floors or multi story buildings that will not require         scaffolding prior to concrete pouring for floor slabs;     -   (b) to provide a new collapsible metal form reinforced structure         for floors or multi story buildings that will not require the         construction of molds prior to concrete pouring for floor slabs;     -   (c) to provide a new collapsible metal form reinforced structure         for floors or multi story buildings that will not require         additional carpentry work prior to concrete pouring for floor         slabs;     -   (d) to provide a new collapsible metal form reinforced structure         for floors or multi story buildings that will not require heavy         equipment prior to concrete pouring for floor slabs;     -   (e) to provide a new collapsible metal form reinforced structure         for floors or multi story buildings that will not require         additional reinforced metal bars prior to concrete pouring for         floor slabs;     -   (f) to provide a new metal collapsible form reinforced structure         for floors or multi story buildings that only requires two         workers for installation prior to concrete pouring for floor         slabs;     -   (g) to provide a new metal collapsible form reinforced structure         for floors or multi story buildings that only requires the use         of jacks to hold in place if the structure is greater than three         meters high prior to concrete pouring for floor slabs;     -   (h) to provide a new metal collapsible form for reinforced         structure for floors or multi-story buildings that requires         30-40% less concrete than conventional processes currently in         use; and     -   (i) to provide a new metal collapsible form for reinforced         structure for floors or multi-story buildings that is light,         inexpensive, uncomplicated and easy to use.

Still further objects and advantages will become apparent from a consideration of the ensuing description and drawing.

SUMMARY

In accordance with the present invention a reinforced structure adapted to be used as reinforced floors for multi-story buildings having a plurality of spaced parallel T-beams structures connected with a plurality of collapsible metal forms interposed between said T-beams arching upwards and joining said beams at the opposed downward ends.

DRAWINGS—FIGURES

The annexed drawings show, by way of example only, an embodiment of the invention, plus variants thereof.

In the drawings, closely related figures have the same number but different alphabetic suffixes.

FIG. 1 is a perspective view of the Invention.

FIG. 2 a shows a top view of the Collapsible Metal Form.

FIG. 2 b shows an end view of the Collapsible Metal Form.

FIG. 3 shows a perspective view of the Collapsible Metal Form.

FIG. 4 shows a side view of the Collapsible Metal Form.

FIG. 5 a shows a perspective view of the Wooden Cleat.

FIG. 5 b shows a top view of the Wooden Cleat.

FIG. 5 c shows an end view of the Wooden Cleat.

FIG. 5 d shows a side view of the Wooden Cleat.

Drawings—Reference Numerals

-   -   11 T-beam     -   12 Collapsible metal form     -   13 Floor slab bars     -   14 Floor slab     -   15 Longitudal reinforcement bars     -   16 Diagonal reinforcement bars     -   17 Wooden cleat

DETAILED DESCRIPTION—FIGS. 1 THROUGH 5

A preferred embodiment of the structure of the present invention is illustrated in FIG. 1 (perspective view); FIGS. 2 a and 2 b (top and end views respectively), FIG. 3 (perspective view) and 4 (side view) and FIG. 5 (end view).

The structure comprises a T-beam 11 containing a plurality of longitudal reinforcement bars 15 which is to be laid down between two major beams of a building. Positioned between each two longitudally placed parallel T-Beams 11 is an arched shaped collapsible metal form 17 which connects the T-Beam 11 at the lower ends of the collapsible metal form 12. Once the collapsible metal form 12 is placed between the T-beams 11, a wooden cleat 17 is placed inside the collapsible metal form 12 strengthening the attachment of the collapsible metal form 12 to the T-beam 11. The collapsible metal form is arch shaped destined to support the stresses of the floor slab 14 and T-beam 11.

Placed on top of the T-Beam 11 is a series of diagonal reinforcement bars 16 forming a pyramid. Additional floor slab reinforcement bars 13 are placed on top of the diagonal reinforcement bars 16 at the position where the diagonal reinforcement bars 16 intersect forming the tip of the pyramid. Finally, the floor slab reinforcement bars 13 are positioned above the T-beams 11 in a grid like pattern.

Concrete is then poured onto the reinforced structure and left for curing. After the concrete is cured, the wooden cleats 17 are removed as well as the collapsible metal form 12. 

1. A collapsible form reinforced structure for floors or multi-story buildings having a plurality of spaced beam structures each consisting of an elongated concrete slab, a plurality of spaced longitudal bars embedded in said slab, an upper longitudal bar spaced upwardly from said slab, and a plurality of groups of reinforcement bars of pyramidal configuration mounted on said slab with their apices joined to the upper longitudinal bar, wherein the improvement comprises: a. a collapsible metal form interposed between said slabs in an upwardly arch shape with the lower ends of said form joining said slabs; and b. a wooden cleat to be inserted in said form for purpose of increasing the strength of the intersection of said slab and said form. 